We must hurry on FOIA Requests. Evidence is being deleted

I made a Freedom Of Information Request to the Arlington Virginia 9-1-1 center. Their response was:
“We will not be able to produce the records requested because they are outside our retention period and the records no longer exist.”

So we have to hurry on FOIA requests before all the evidence around 9/11/2001 has been deleted. There is no reason for them to delete the data, especially for reports of crime, when gigabytes can be stored on small pocket devices.